These pranks are harmless and fun have fun and Enjoy.
Prank 1:The Squirt
Prank 2:Raining cups
Prank 3:Got Milk?
Prank 4:Look What I can Do!

Step 1: Prank 1:The Squirt

If you have a sink with a sprayer, put a piece of tape around the handle when nobody's looking. This automatically keeps the nozzle in spray-mode. Make sure the nozzle is pointing up and outward. The next person to use the sink will get a splash! Too funny!

Step 2: Prank 2:Raining Cups

Now in a cabinet with cups in it tilt some sups so that they are leaning on the cabinet when you close the caibnet door. The Next person to open the door will get a nice surprise of raining cups.(hopefully not yourself)

Step 3: Prank 3:Got Milk?

If your milk comes in a cardboard container, add a few drops of food coloring. It's harmless April Fool's joke but the results are pretty colorful.

Step 4: Prank 4:Look What I Can Do!

Ask your victim, er.. friend to put a quarter on a piece of paper and, without removing their finger, trace the coin with a pencil or marker. Repeat the "test" with a few fingers. After that's done, get the victim to pick up the quarter and roll it along the bridge of their nose. Then quietly snicker behind their back as they walk around with a black line along their nose. Don't use a permanent marker beacuse that's not cool.

Step 5: Glued Quarter

This one is fun and easy just put some super glue to the bottom of a quarter and put it somewhere and watch as helpless people try to pick it up and cant!